Cementing machine



y 29, 1934- l. KEITH 1,960,341

CEMENTING MACHINE Filed Oct. 8, 1932 2 Sheets-Sheet l May 29, 1934. rr 1,960,341

CEMENTING MACHINE Filed Oct. 8, 1932 2 Sheets-Sheet 2 lullllllllllilllllllllllllll Patented May 29, 1934 UN ITED; PATENT? OF F ICE,

CEMENTING MACHINE Irving L. Keith, Haverhill,Mass.

Application October 8, 1932, Serial No. 636,840

14 Claims.

This invention relates to cementing machines, of the vertically movable, horizontally disposed.

grid type such as are shown'in my Patent No; 1,311,605, dated July 29th, 1919 and that. to McMurray #1393147 dated February 4th, 1919,

and which are-adapted toapply cement to sheet.

material laid therein;

In the manufacture of shoes, it is customary to cement together various parts'thereof andin'.

19 many instances it is desirable that certain portions of such parts, and frequently portions at, and adjacent the edges thereof, be heavily'coated with cement and that other portions be more lightly coated. Also in some instances it is desirable to have the cement applied only at the edge portion and some timesin stripes across-thesurface. So faras I am aware the only-method by which the edge portions only of such parts have been heavily-coated with cement has been 20 by means of a hand brush, as the provision' of mechanical means for applying cement in this: manner to the edge portions of pieces of sheet 1 material of various shapes-and sizeshas not been considered practical, if possible, and where it has" been desired to coat one portion of a part heavily and another portion more lightly, ithas' been" necessary to provide a specially constructed grid for the purpose, if the brush method w'asnot to be employed.

tain portions, or to the edge-portion -only:of cutout pieces of sheet material of various sha'pes and sizes, and at the same time to apply either a'rela I tively small amount of cement, or practically'no' cement at all, to the other portions of thepiece," or to coat some portions-of a' piece heavily and 40 other portions lightly, so that the employment" of the brush method,-above' referred to, maybe dispensed with, or the provision of specially constructed grids may be made unnecessary, these operations may be facilitated.-

viding, in connection with cementing gridsofthe type above referred to, which have openings therethrough-permitting the passage of liquid cement, and cement applying faces adjacent said openings, a supplemental cement applying means,

preferably in the form of astrip of resilient, flexible rubber, which isinsertablein the openings of the grid, and, when the gridchas: vertically BX-z tending, spaced: cementing projections, in thespaces between said 'projections,-:and'=which is which is to beheavily coated with cement.

The objects of my invention are to provide a cementing device, preferably of' the 'grid type above referred to, which may be readily adapted to apply a continuous coatingof cement-:.tocer- I accomplish these objects primarily-bypro in a", horizontal position and is moved vertically from alowered position in which it is entirely adapted to be held therein by frictional engage ment therewith whereby the strip, or difierent Zsections thereof; which, as it is inserted in the grid openings or recesses, may be termed a filler may be made to conform to an edge portion of $3 a piece" of sheet material, which is to be heavily ce- 1 mented, thereby to provide-a supplemental face for applying cement to such edgeportion, or to any other portion of a piece of sheet material 'For a more complete disclosure of my inven- 7 tion, reference is now madeto the following specie fication, in connection with the accompanying drawings in which:-

f Fig. 1 is a plan view ofr'a-form ofcementing grid provided with an embodiment of my invention.

Fig. 2 is a sectional VieW'thereOf at line 2-2 Of Fig. 1.

*Fig. 3 is a detail View in perspective of a portion 7 of the grid.

Fig; 4is a detail sectional view'of amodified form of the invention. "Fig. 5 is a view illustrating the work which, may be performed by'meansof a grid of the form 8 shown'in Fig. 1.

Fig. 6 is a plan view of another form of cementing gridprovided with another embodiment of the invention. 1

Fig. 7 is a detail sectional view of a portion thereof and Fig. 8'is a View of a shoe sole to which cement has been applied by the arrangement shownin Fig. 6.. i

'As shown in the drawings, a cementing machine of the type shown in said patent to McMurray is V illustrated, said machine comprising a grid which is'composed of aseries of flat .bars an arranged in parallelism, each bar having a series of verti- 105 submerged in the liquidoement contained in a receptacle 0 directly beneath it, and a raised posie tion in which it is suported above the level of the cement, so that the sheet material to be :cemented may be-laid ,on the-cement applying .11

faces of the fingers, thereby, to' transfer the cement thereon to the material. U

According to one form of my inventiomI pro-' vide a strip (1 of fiexible material, preferably of resilient rubber, which is of a uniform width slightly greater than the distance between adjacent fingers, so that it maybe close-fitted or forced therebetween in directions either transversely or longitudinally of the grid. Said'strip is also of a thickness corresponding to the length of the fingers, so that, when inserted between adjacent fingers on bar, it will rest on the edges of the bar and be supported thereby. In practice the strip is bent to conform to the pattern of a particular piece of sheet material, the edge portion of which is to be heavily cemented, and

the strip is pressed down between the fingers in this form, so that its top surface is flush with the top faces of the fingers, as shown in Figs. 1, 2 and 3. The strip will thus he held in position to conform to the pattern of a particular piece of material to be cemented, the particular pat tern shown in Fig. 1 being merely illustrative.

In using the above described device, after the flexible filler strip has been inserted in a forma tion corresponding to the pattern of the piece of sheet material to be cemented, the grid is submerged in the cement and raised in the usual manner, and then the piece of material is laid on the grid with its edge approximately in coincidence with the outer edge of the strip 11. As the top surface of the strip will be coated with cement, the cement thereon will, to a large extent, be transferred to the edge portion of the piece, so that its edge portion will receive a solid coating of cement and its inner portion will have the cement applied thereto in dots, as indicated in Fig. 5, the operation on the inner portion of the piece being identical to that performed by the McMurray grid.

In some instances it is not necessary to apply the cement to the inner portion of the piece, in which instancea strip will be employed which is of slightly greater thickness than the depth of the recesses in the bars between the teeth,.so.

that the top surface of the strip will be supported at a short distance above the top ends of the fingers, as shown by the strip din Fig. 4, so that, when thematerial to be cemented is laid onto the strip, as before described, the strip will hold' the piece out of contact with the ends of the fingers, and cement will only be applied to the edge portion of the material, except where its inner portion may c ome in contact with the fingers by accident.

In Figs. 6 and 7 a form of grid is illustrated similar to that shown in my said Patent No. 1,- 311,605, in which a series of flat bars e are held in parallel relation and are spaced uniformly to provide openings therebetween, the upper edges of the bars being disposed in the same horizontal plane and providing cementing faces, so that normally the grid will apply the cement in stripes to the material laid thereon. As with this form of grid the filler cannot be extended across the bars. I provide a series of resilient sections, or blocks 1, which are preferably composed of resilient rubber and are of slightly greater width than the width of the openings between the bars, so that said sections may be forced into the openings by slightly compressing them and will be held in the position in which they are placed by frictional engagement. The sections may be made square in ,cross section as shown by the sections i, or elongated, as shown by the sections g. As

shown in Fig. 6, the square sections may be arranged to correspond to the outline of a shoe sole, when it is desired to apply a heavy'coating of cement to its edge portion, and if, in addition, it may be desired also to apply the cement to certain portions thereof in heavy transverse stripes, the elongated section 9 may be forced intothe openings between the bars in the positions de-: sired, so that the sole may have cement applied thereto in the manner indicated in Fig. 8. s Thesections or g may obviously be employed in connection with a grid of the type shown in Fig. l, or they may be employed therein in connection with the elongatedfiexible strip (1.

By employing a filling device of the above described characten'and, inthe manner indicated, in connection with practically any form of grid of the general type shown, the" grid may be adapted to apply a. heavy coating of cementto the edge portion of pieces of sheet material of various 95 shapes, or to certain portions only of such pieces-,- and the necessary changes in location of the filler may be quickly made by the operator- The.oper-- ation of applying a heavycoating of cement to some portions and a light coating to other portionsmay be performed as rapidly as if the ocment were applied uniformly throughout the entire surface, thereby making the use of a brush unnecessary and enabling a single machine to be employed for a wide range of work. I

I claim: 1. A cementing grid of the type described having a cementing face and openings therethrough,

a filler removably insertable in said openings to provide a supplemental cementing face.

2.In combination with a cementing grid of the type described having openings therethrough and cementing faces adjacent said openings, a filler removably insertable in different positions in said openings to provide a supplemental cementing face in different locations with relation to the faces of the grid. s 3. In combination with a cementing grid having transversely extending openings therethrough, cementing faces adjacent said openings and recesses in its top side connecting said openings, filling material removably insertable in said openings and recesses to provide a supplemental "cementing face of variable formation.

4. In combination with a cementing grid having elongated openings therethrough, and cementing faces adjacent said openings, a strip of material removably insertable in said openings to provide an elongated supplemental cementing face in different positions on the grid.

5. In combination with a cementing grid having upwardly extending cement applying projections arranged over its surface in spaced relation, a filling material removably insertable between said projections and arranged to provide a relatively narrow'supplemental cement applying face of variable formation.

6. In combination with a cementing grid having upwardly projecting fingers arranged thereon in spaced relation and having cement applying faces on their upper ends, filling material removably insertable between said fingers and arranged to provide a cement applying face between the faces of said fingers at the level of said faces.

7. In combination with a cementing grid having openings therethrough and cementing faces adjacent said openings, a filler of resilient material adapted to be forced into said openings and to be retained therein by its frictional engagement with the sides thereof, to provide a supplemental cementing face in different locations on the grid.

8. In combination with a cementing grid having openings therethrough and cementing faces adjacent said openings, a strip of flexible material insertable in different positions in said openings to provide an elongated supplemental cementing face.

9. In combination with a cementing grid hav ing cement applying fingers projecting upwardly therefrom in spaced relation, a strip of flexible material insertable between said fingers, to provide an elongated supplemental cementing face adjacent the ends of said fingers of variable formation.

10. In combination with a cementing grid having fingers projecting upwardly therefrom in uniformly spaced relation, and having cement applying faces on their ends, a strip of flexible resilient material of a uniform width corresponding to the spaces between said fingers and inserted between the same in a formation corresponding to the contour of a piece of sheet material to be cemented, to provide a cementing face sup-' plemental to the faces of said fingers.

11. In combination with a horizontally disposed cementing grid having uniformly spaced, upwardly projecting fingers provided with cementing faces on their upper ends arranged at a uniform level, and a strip of flexible material of a width corresponding to the width of the spaces between said fingers and in which said strip is inserted in predetermined formation with its top side adjacent the level of said faces, and in position to provide a supplemental cementing face.

12. In combination with a horizontally disposed cementing grid having cementing faces disposed at a uniform level and having openings therebetween, a filler insertable in said openings and arranged with its top side adjacent and above the level of said faces, and in position to provide a, supplemental cementing face.

13. In combination with a cementing grid having openings therethrough and cementing faces adjacent said openings, a series of separate filler sections insertable in said openings to provide supplemental cementing faces of variable formation.

14. In combination with a cementing grid having openings therethrough and cementing faces adjacent said openings, a series of separate filler sections of yieldable, resilient material adapted to be forced into said openings and to be held therein by frictional engagement, to provide supplemental cementing faces.

IRVING L. KEITH. 

